Probably not. As one of the key skills of the style it would probably be something that has to be taught and can only affect yourself, since it's sort of an internal equivalent exchange. So you could temporarily lower your ki amount to gain more speed or strength or vice versa but the amount of power you possess doesn't actually change, just how its' expressed. If she was taught the technique she could maybe bolster her own ki with some other ability and increase it that way, but she would have to learn it first and if Guls figures it out he would probably refuse to teach her the technique.